Fixup build system

Dockerfile

@@ -1,11 +1,16 @@
 FROM eclipse-temurin:21.0.7_6-jre-noble
 
-RUN apt-get update && apt-get install -y unzip && apt install -y graphviz && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install -y libarchive-tools && apt install -y graphviz && rm -rf /var/lib/apt/lists/*
 
 COPY build/distributions/structurizr-cli.zip /tmp
 
-RUN unzip /tmp/structurizr-cli.zip -d /usr/local/structurizr-cli && chmod +x /usr/local/structurizr-cli/structurizr.sh
+ARG APPDIR=/usr/local/structurizr-cli
 
-WORKDIR /usr/local/structurizr
+RUN <<EOF
+mkdir -p $APPDIR
+bsdtar -xf /tmp/structurizr-cli.zip -C $APPDIR --strip-components 1
+EOF
 
-ENTRYPOINT ["/usr/local/structurizr-cli/structurizr.sh"]
+WORKDIR "$APPDIR"
+
+ENTRYPOINT ["bin/structurizr-cli"]

build.gradle

@@ -1,15 +1,18 @@
 plugins {
 	id 'java'
+	id 'application'
 }
 
-defaultTasks 'clean', 'build', 'getDeps', 'buildZip'
+defaultTasks 'clean', 'assemble', 'distZip'
 
 description = 'Structurizr CLI'
 group = 'com.structurizr'
 version = ''
 
-sourceCompatibility = 17
-targetCompatibility = 17
+java {
+    sourceCompatibility = JavaVersion.VERSION_21
+    targetCompatibility = JavaVersion.VERSION_21
+}
 
 repositories {
 	mavenCentral()
@@ -44,12 +47,45 @@ test {
 	useJUnitPlatform()
 }
 
+def command(String... command) {
+    try {
+        return providers.exec {
+            commandLine command
+        }.standardOutput.asText.get().trim()
+    }
+    catch (e) {
+        e.printStackTrace();
+        return "";
+    }
+}
+
+def getVersionName = { ->
+    command 'git', 'describe', '--tags', '--dirty'
+}
+
+def getTimestamp = { ->
+    command 'date', '--utc', '+%FT%H:%M:%SZ'
+}
+
 sourceSets.main.resources {
 	srcDirs = ['src/main/resources']
 	include 'build.properties'
 	include 'static.zip'
 }
 
+processResources {
+    filesMatching('**/*.properties') {
+        filter { line ->
+            line.replaceAll('@BUILD_NUMBER@', getVersionName())
+                .replaceAll('@BUILD_DATE@', getTimestamp())
+        }
+    }
+}
+
+application {
+    mainClass = 'com.structurizr.cli.StructurizrCliApplication'
+}
+
 jar {
     manifest {
         attributes(
@@ -58,28 +94,3 @@ jar {
         )
     }
 }
-
-task getDeps(type: Copy) {
-	from configurations.default
-	into 'build/dependencies'
-}
-
-task buildZip(type: Zip) {
-	from ('build/libs/') {
-		include 'structurizr-cli*.jar'
-		into 'lib'
-	}
-	from ('build/dependencies') {
-		include '*.jar'
-		into 'lib'
-	}
-	from ('.') {
-		include 'README.md'
-		include 'docs/*'
-		include 'docs/images/*'
-	}
-	from ('etc') {
-		include 'structurizr.sh'
-		include 'structurizr.bat'
-	}
-}

src/main/java/com/structurizr/cli/util/Version.java

@@ -10,11 +10,9 @@ public class Version {
 
     private static final String BUILD_VERSION_KEY = "build.number";
     private static final String BUILD_TIMESTAMP_KEY = "build.timestamp";
-    private static final String GIT_COMMIT_KEY = "git.commit";
 
     private static String version = "";
     private static Date buildTimestamp = new Date();
-    private static String gitCommit;
 
     static {
         try {
@@ -25,7 +23,6 @@ public class Version {
                 buildProperties.load(in);
                 version = buildProperties.getProperty(BUILD_VERSION_KEY);
                 buildTimestamp = format.parse(buildProperties.getProperty(BUILD_TIMESTAMP_KEY));
-                gitCommit = buildProperties.getProperty(GIT_COMMIT_KEY);
                 in.close();
             }
         } catch (Exception e) {
@@ -41,8 +38,4 @@ public Date getBuildTimestamp() {
         return buildTimestamp;
     }
 
-    public String getGitCommit() {
-        return gitCommit;
-    }
-
-}
+}

src/main/resources/build.properties

@@ -1,2 +1,2 @@
-build.number=2023.12.29.0
-build.timestamp=2023-12-29T13:33:22Z
+build.number=@BUILD_NUMBER@
+build.timestamp=@BUILD_DATE@